US3229194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching regulator
Assignee: AT&T Inc
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Filing: 1961-09-29
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Granted: 1966-01-11
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Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 John K Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:24
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/1563
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A HIGH EFFICIENCY VOLTAGE REGULATOR COMPRISING A SOURCE OF POTENTIAL, A LOAD, A REGULATING ELEMENT HAVING BOTH CONDUCTIVE AND NONCONDUCTIVE STATES, AND A REGENERATIVE FEEDBACK NETWORK INCLUDING FA CONTROL ELEMENT CONNECTED TO SAID REGULATING ELEMENT TO RENDER SAID REGULATING ELEMENT CONDUCTIVE FOR A RELATIVELY CONSTANT INTERVAL AND NONCONDUCTIVE FOR A VARIABLE INTERVAL CONTROLLED BY SAID CONTROL ELEMENT, MEANS SERIALLY CONNECTING SAID SOURCE, SAID REGENERATIVE FEEDBACK NETWORK, SAID REGULATING ELEMENT, AND SAID LOAD TO INTERMITTENTLY TRANSFER THE VOLTAGE OF SAID SOURCE DIRECTLY TO SAID LOAD WITHOUT SUBSTANTIAL CHANGE, AND MEANS RESPONSIVE TO LOAD VOLTAGE
Claim 2
Dependent Claim
93 words
A HIGH EFFICIENCY VOLTAGE REGULATOR COMPRISING A SOURCE OF POTENTIAL, A LOAD, A REGULATING ELEMENT HAVING BOTH CONDUCTIVE AND NONCONDUCTIVE STATES, AND A REGENERATIVE FEEDBACK NETWORK INCLUDING FA CONTROL ELEMENT CONNECTED TO SAID REGULATING ELEMENT TO RENDER SAID REGULATING ELEMENT CONDUCTIVE FOR A RELATIVELY CONSTANT INTERVAL AND NONCONDUCTIVE FOR A VARIABLE INTERVAL CONTROLLED BY SAID CONTROL ELEMENT, MEANS SERIALLY CONNECTING SAID SOURCE, SAID REGENERATIVE FEEDBACK NETWORK, SAID REGULATING ELEMENT, AND SAID LOAD TO INTERMITTENTLY TRANSFER THE VOLTAGE OF SAID SOURCE DIRECTLY TO SAID LOAD WITHOUT SUBSTANTIAL CHANGE, AND MEANS RESPONSIVE TO LOAD VOLTAGE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |